Answer:
PEMDAS
Step-by-step explanation:
parenthesis
Exponents
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This question does not make sense
<h2>1/4 or 0.25</h2>
Step-by-step explanation:

Convert Mixed number to improper fraction.

Equate

Cross Multiply

Divide both sides of the equation by 40

Simplify

The equation would be:
x≥-4
We are given that the distance light travel is:
9.45 x 10^15 meters / year
And that there is:
3.15 x 10^7 seconds / year
So the distance light travels per second is:
distance = (9.45 x 10^15 meters / year) * (1 year / 3.15 x
10^7 seconds)
<span>distance = 3 x 10^8 meters / second</span>